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globalchange

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carbon(198)
population(142)
precipitation(115)
emissions(106)
atmosphere(101)
conservation(97)
density(95)
velocity(77)
heat(72)
forests(68)
lead(65)
aerosols(61)
carbon dioxide(59)
earthquakes(59)
vegetation(59)
surface temperature(58)
sediments(53)
clouds(52)
isotopes(52)
lakes(51)
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